Oracle has acquired Endeca, a company that powers enterprise search for large companies. Financial terms of the deal were not disclosed. Endeca has raised a total of $65 million from Bessemer, Venrock, Intel, SAP, Ampersand Capital Partners, DN Capital and Lehman Brothers.

Endeca’s core technology enables companies to correlate and analyze unstructured data and provides enterprise search for large companies including Borders, Boeing, the Census Bureau, the EPA, Ford, Hallmark, IBM, and Toshiba. The company specializes in guided search, and auto-categorizing results based on the keywords someone enters. Endeca charges from $100,000 to more than $10 million per installation.

Endeca’s InFront offering allows businesses with tools for advanced merchandising and content targeting for e-commerce. And Endeca Latitude enables businesses to rapidly develop analytic applications that draw information and data from unstructured and structured sources together.

Oracle says that the combination of Oracle and Endeca is expected to more advanced enterprise data management platform. Companies will be able to process, store, manage, search and analyze structured and unstructured information together. For example, Oracle says the combination of Oracle’s own commerce application, ATG Commerce and Endeca InFront is expected to enhance cross-channel commerce, merchandising, and online customer experiences. And Oracle’s Business Intelligence offering and Endeca Latitude will be combined as well to give businesses a more powerful analytics platform.

Endeca currently has over 600 customers.

Other recent Oracle acquisitions include Pillar Systems, and Fatwire Software.